Enigma Machine

alphabets = [chr(i) for i in range(32, 126)]
gear_one = [i for i in range(len(alphabets))]
gear_two = [i for i in range(len(alphabets))]
gear_three = [i for i in range(len(alphabets))]
reflector = [i for i in reversed(range(len(alphabets)))]
code = []
gear_one_pos = gear_two_pos = gear_three_pos = 0


def rotator():
    global gear_one_pos
    global gear_two_pos
    global gear_three_pos
    i = gear_one[0]
    gear_one.append(i)
    del gear_one[0]
    gear_one_pos += 1
    if gear_one_pos % int(len(alphabets)) == 0:
        i = gear_two[0]
        gear_two.append(i)
        del gear_two[0]
        gear_two_pos += 1
        if gear_two_pos % int(len(alphabets)) == 0:
            i = gear_three[0]
            gear_three.append(i)
            del gear_three[0]
            gear_three_pos += 1


def engine(input_character):
    target = alphabets.index(input_character)
    target = gear_one[target]
    target = gear_two[target]
    target = gear_three[target]
    target = reflector[target]
    target = gear_three.index(target)
    target = gear_two.index(target)
    target = gear_one.index(target)
    code.append(alphabets[target])
    rotator()


if __name__ == "__main__":
    decode = list(input("Type your message:\n"))
    while True:
        try:
            token = int(input("Please set token:(must be only digits)\n"))
            break
        except Exception as error:
            print(error)
    for i in range(token):
        rotator()
    for j in decode:
        engine(j)
    print("\n" + "".join(code))
    print(
        f"\nYour Token is {token} please write it down.\nIf you want to decode "
        "this message again you should input same digits as token!"
    )
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We are a group of programmers helping each other build new things, whether it be writing complex encryption programs, or simple ciphers. Our goal is to work together to document and model beautiful, helpful and interesting algorithms using code. We are an open-source community - anyone can contribute. We check each other's work, communicate and collaborate to solve problems. We strive to be welcoming, respectful, yet make sure that our code follows the latest programming guidelines.